Cheap flights from Ireland to Belfast from €64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 5/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

 Logo
22:05 - 07:15DUB-BFS
9h 10m1 stop
 Logo
05:45 - 18:15BFS-DUB
12h 30m1 stop
€116
Find Deal
Sat, 13 Sep - Sat, 20 Sep
 Logo
09:05 - 16:40ORK-BFS
7h 35m1 stop
 Logo
17:05 - 21:20BFS-ORK
4h 15m1 stop
€117
Find Deal
Wed, 1 Oct - Wed, 8 Oct
 Logo
06:30 - 18:45DUB-BFS
12h 15m1 stop
 Logo
07:25 - 20:20BFS-DUB
12h 55m1 stop
€119
Find Deal
Tue, 16 Sep - Tue, 23 Sep
 Logo
06:30 - 13:30DUB-BFS
7h 00m1 stop
 Logo
19:35 - 09:35BFS-DUB
14h 00m1 stop
€120
Find Deal
Sat, 20 Sep - Sat, 20 Sep
Aer Lingus Logo
06:30 - 12:50DUB-BHD
6h 20m1 stop
Aer Lingus Logo
07:30 - 13:00BHD-DUB
5h 30m1 stop
€190Aer Lingus
Find Deal
Sat, 27 Sep - Sun, 5 Oct
Aer Lingus Logo
10:10 - 20:10DUB-BHD
10h 00m1 stop
Aer Lingus Logo
07:30 - 14:45BHD-DUB
7h 15m1 stop
€199Aer Lingus
Find Deal
Sat, 27 Sep - Sun, 5 Oct
KLM Logo
11:10 - 16:55DUB-BHD
5h 45m1 stop
KLM Logo
06:30 - 20:15BHD-DUB
13h 45m1 stop
€213KLM
Find Deal
Sat, 27 Sep - Sun, 5 Oct
KLM Logo
11:10 - 21:15DUB-BHD
10h 05m1 stop
KLM Logo
06:30 - 20:15BHD-DUB
13h 45m1 stop
€214KLM
Find Deal
Sat, 27 Sep - Sun, 5 Oct
British Airways Logo
20:10 - 10:10DUB-BHD
14h 00m1 stop
British Airways Logo
19:30 - 07:45BHD-DUB
12h 15m1 stop
€243British Airways
Find Deal
Sat, 27 Sep - Mon, 6 Oct
British Airways Logo
20:10 - 10:10DUB-BHD
14h 00m1 stop
British Airways Logo
06:50 - 16:20BHD-DUB
9h 30m1 stop
€248British Airways
Find Deal
Sat, 27 Sep - Sun, 5 Oct

British Airways flights from Ireland to Belfast

Our best British Airways deals on Ireland to Belfast flight tickets
British Airways
27 Sept
DUB20:10Dublin
14h 00m
1 stop
BHD10:10Belfast City
6 Oct
BHD19:30Belfast City
12h 15m
1 stop
DUB07:45Dublin
British Airways
27 Sept
DUB20:10Dublin
14h 00m
1 stop
BHD10:10Belfast City
5 Oct
BHD06:50Belfast City
9h 30m
1 stop
DUB16:20Dublin
British Airways
27 Sept
DUB20:10Dublin
14h 00m
1 stop
BHD10:10Belfast City
5 Oct
BHD11:00Belfast City
5h 20m
1 stop
DUB16:20Dublin

Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
27 Sept
DUB06:30Dublin
6h 20m
1 stop
BHD12:50Belfast City
5 Oct
BHD07:30Belfast City
5h 30m
1 stop
DUB13:00Dublin
Aer Lingus
27 Sept
DUB10:10Dublin
10h 00m
1 stop
BHD20:10Belfast City
5 Oct
BHD07:30Belfast City
7h 15m
1 stop
DUB14:45Dublin
Aer Lingus
14 Sept
DUB06:30Dublin
6h 50m
1 stop
BHD13:20Belfast City
21 Sept
BHD13:25Belfast City
7h 35m
1 stop
DUB21:00Dublin

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 18 August 2025.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 13/9

22:05-07:15

1 stop9h 10m

Belfast Intl

Sat 20/9

05:45-18:15

1 stop12h 30m

€116

CorkBelfast

ORK - BFS

ORKBFS

Cork

Wed 1/10

09:05-16:40

1 stop7h 35m

Belfast Intl

Wed 8/10

17:05-21:20

1 stop4h 15m

€117

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 16/9

06:30-18:45

1 stop12h 15m

Belfast Intl

Tue 23/9

07:25-20:20

1 stop12h 55m

€119

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 20/9

06:30-13:30

1 stop7h 00m

Belfast Intl

Sat 20/9

19:35-09:35

1 stop14h 00m

€120

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

06:30-12:50

1 stop6h 20m

Belfast City

Sun 5/10

07:30-13:00

1 stop5h 30m

€190

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

10:10-20:10

1 stop10h 00m

Belfast City

Sun 5/10

07:30-14:45

1 stop7h 15m

€199

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

11:10-16:55

1 stop5h 45m

Belfast City

Sun 5/10

06:30-20:15

1 stop13h 45m

€213

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

11:10-21:15

1 stop10h 05m

Belfast City

Sun 5/10

06:30-20:15

1 stop13h 45m

€214

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

20:10-10:10

1 stop14h 00m

Belfast City

Mon 6/10

19:30-07:45

1 stop12h 15m

€243

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

20:10-10:10

1 stop14h 00m

Belfast City

Sun 5/10

06:50-16:20

1 stop9h 30m

€248

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Belfast?

The average flight duration from Ireland to Belfast depends on which airport you fly into and out of. Flying from Dublin to Belfast Intl Airport is 3h 40m on average, while flying from Milltown (Kerry) to Belfast Intl Airport is 7h 35m on average. Belfast Intl Airport is the most popular airport in Belfast.

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Best price found

€64

Fastest flight time

3h 15m

Direct flights

None

Airports in Belfast

2 airports
The best one-way flight to Belfast from Ireland in the past 72 hours is €64. The best return flight deal from Ireland to Belfast found on momondo in the last 72 hours is €116.
The fastest flight from Ireland to Belfast takes 3h 15m
There are no direct flights from Ireland to Belfast. Popular non-direct routes for this connection are Dublin Airport - Belfast Intl Airport, Cork Airport - Belfast Intl Airport and Dublin Airport - Belfast City Airport.
There are 2 airports near Belfast: Belfast Intl (BFS), Belfast City (BHD)
  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ireland to Belfast?

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Ireland to Belfast

Compare and see reviews for airlines that fly from Ireland to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom €260Free CancellationRating
6.6
7,277 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

Once all potential Ireland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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1 adult
Sat 23/8
Sat 30/8

Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast